Show the code
Plot.dot(filteredData,
{
x: "date",
y: "measure",
stroke: "measure",
tip: true
})
.plot()Kester Weather Station
version: 0.3.3
This page displays the measurements taken from our personal weather station. The raw measurements are taken every 15 minutes but we have aggregated the information when pulling it from our PostgreSQL database to every hour, day, and month.
Much improvement is required to make meaningful conclusions from the data and for them to make sense in the context of what the measurements mean.
Background information on our Weather Station project can be found at this github page: Kester Weather Station
Background information on this site and how we manage and display the data generated from the above project can be found at this site: Kester Weather Visualization Site
Charting
Select a time aggregation level and measure on the left to view the corresponding data in chart and table form on the right. The “As Measured” level does not provide any aggregation and shows every measurement taken at 15 minute intervals.
Appendix
Find the source code on GitHub at Kester Weather Visualization Site
Show the code
# This function builds the PostgreSQL query required to aggregate the timeseries
# data to a specified level.
agg_query <- function(agg_function, type, agg_level){
if(agg_level == 'As Measured'){
query <- sprintf("SELECT time AS date,
type,
\"measurementValue\" AS measure,
\"measurementValue\" AS measure_min,
\"measurementValue\" AS measure_max
FROM sensor_data
WHERE type = '%s'",
type)
}else{
query <- sprintf("SELECT date,
type,
%s(\"measurementValue\") AS measure,
min(\"measurementValue\") AS measure_min,
max(\"measurementValue\") AS measure_max
FROM (
SELECT date_trunc('%s',time) AS date,
type,
\"measurementValue\"
FROM sensor_data
WHERE type = '%s') AS A
GROUP BY date,
type",
agg_function,
agg_level,
type)
}
return(query)
}
measure_gather <- function(con, measure_spec, measure_tib, agg_levels){
for(measure in 1:nrow(measure_spec)){
for(agg in agg_levels){
if(agg == 'As Measured'){
temp <- DBI::dbGetQuery(conn = con,
statement = agg_query(agg_function = measure_spec[measure,1],
type = measure_spec[measure,2],
agg_level = agg))
measure_tib <- dplyr::bind_rows(measure_tib,
tibble::tibble(aggregate_level = agg,
temp))
}else{
temp <- DBI::dbGetQuery(conn = con,
statement = agg_query(agg_function = measure_spec[measure,1],
type = measure_spec[measure,2],
agg_level = agg))
measure_tib <- dplyr::bind_rows(measure_tib,
tibble::tibble(aggregate_level = agg,
temp))
}
}
}
return(measure_tib)
}Show the code
if(update){
load(file = "./connectionInfo.RData")
measure_spec <- tibble::tibble(fun = c('avg',
'avg',
'avg',
'avg',
'sum',
'avg',
'avg',
'avg'),
type = c('Air Humidity',
'Air Temperature',
'Barometric Pressure',
'Light Intensity',
'Rain Gauge',
'UV Index',
'Wind Direction Sensor',
'Wind Speed'))
agg_levels <- c('As Measured','month','day','hour')
measure_tib <- tibble::tibble(aggregate_level = "NA",
date = Sys.time(),
type = "NA",
measure = 1.1,
measure_min = 1.1,
measure_max = 1.1)[-1,]
con <- DBI::dbConnect(drv = RPostgreSQL::PostgreSQL(),
dbname = db,
host = host,
port = port,
user = user,
password = password)
measure_tib <- measure_gather(con = con,
measure_spec = measure_spec,
measure_tib = measure_tib,
agg_levels = agg_levels)
DBI::dbDisconnect(conn = con)
save(measure_tib,
file = "./weatherData.RDS")
rm(con,db,host,password,port,user)
}
if(file.exists("./weatherData.RDS")){
load(file = "./weatherData.RDS")
}
if(exists(x = "measure_tib")){
ojs_define(measures = measure_tib)
}Show the code
import { aq, op } from '@uwdata/arquero'
d3 = require("d3@7")
parser = d3.timeParse("%Y-%m-%d %H:%M:%S");Show the code
measures_trans = aq.from(transpose(measures)).derive({ date: aq.escape(d => parser(d.date)) })
filteredData = measures_trans
.params({
m: measure_type,
t: time_aggregation
})
.filter((d,p) => op.includes(d.type, p.m) && op.includes(d.aggregate_level, p.t))